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[taler-marketing] branch master updated: blockchain integration

From: gnunet
Subject: [taler-marketing] branch master updated: blockchain integration
Date: Sun, 05 Mar 2023 19:04:35 +0100

This is an automated email from the git hooks/post-receive script.

dold pushed a commit to branch master
in repository marketing.

The following commit(s) were added to refs/heads/master by this push:
     new de5a660  blockchain integration
de5a660 is described below

commit de5a660dc7a48d4403d0c3c682704096f84dafe0
Author: Florian Dold <>
AuthorDate: Sun Mar 5 19:04:31 2023 +0100

    blockchain integration
--- | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/ b/
new file mode 100644
index 0000000..a61352e
--- /dev/null
+++ b/
@@ -0,0 +1,29 @@
+# Taler/Blockchain Synergies
+Two types of complementary Blockchain integration are possible:
+1. Blockchain as underlying account-based settlement layer (RTGS, wholesale 
+2. Blockchain as decentralized, durable, append-only data storage
+# Taler + RTGS Blockchain
+* Blockchain is used as the underlying account-based settlement layer
+ * Incoming transactions to exchange are monitored as part of issuing digital 
+ * Outgoing payments are initiated by exchange to pay merchants/customers for 
deposited digital cash
+* Requires adapter that exposes HTTP/JSON interface to exchange (called a wire 
+* Depolymerizer project implements this for ETH and BTC Blockchains
+Implementation estimates (person-days):
+* Subsequent integration w/ different Blockchain: 15-30
+# Taler + Data Storage Blockchain
+* Taler Exchange uses Blockchain as append-only database for crucial records
+  (coin invalidations, deposit confirmations, ...)
+* Architecture: Exchange has postgresql as caching layer, Blockchain as
+  source-of-truth. Two-way synchronization between Blockchain and Taler 
+* Can also be used to improve quantum resilience (c.f. Chaum)
+Implementation estimates (person-days):
+* Implementation with first Blockchain: 40-70
+* Subsequent integration w/ different Blockchain: 15-30

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